a509b8adc9
Run everything thru indent to cleanup spaces vs tabs. Clean up some of the comments by hand. BGL.c was not touched due to all that macro wackyness. There are no functional changes to the code. Pre-indent versions of source are tagged with tag bpy-cleanup-20040925 , just in case.
685 lines
17 KiB
C
685 lines
17 KiB
C
/*
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* $Id$
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* ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version. The Blender
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* Foundation also sells licenses for use in proprietary software under
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* the Blender License. See http://www.blender.org/BL/ for information
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* about this.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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*
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* This is a new part of Blender.
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*
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* Contributor(s): Stephen Swaney
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*
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* ***** END GPL/BL DUAL LICENSE BLOCK *****
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*/
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#include "Python.h"
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#include "DNA_curve_types.h"
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#include "BKE_curve.h"
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#include "MEM_guardedalloc.h"
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#include "bpy_types.h"
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#include "modules.h"
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#include "gen_utils.h"
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#include "CurNurb.h"
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/*-------------------------------------------------------------
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stuff in this section should be placed in bpy_types.h
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-----------------------------------------------------------*/
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/*
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* forward declarations go here
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*/
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extern PyMethodDef BPy_CurNurb_methods[];
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PyObject *CurNurb_CreatePyObject( Nurb * blen_nurb );
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static PyObject *CurNurb_setMatIndex( BPy_CurNurb * self, PyObject * args );
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static PyObject *CurNurb_getMatIndex( BPy_CurNurb * self );
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/* static PyObject* CurNurb_setXXX( BPy_CurNurb* self, PyObject* args ); */
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PyObject *CurNurb_getPoint( BPy_CurNurb * self, int index );
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static int CurNurb_length( PyInstanceObject * inst );
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static PyObject *CurNurb_getIter( BPy_CurNurb * self );
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static PyObject *CurNurb_iterNext( BPy_CurNurb * self );
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PyObject *CurNurb_append( BPy_CurNurb * self, PyObject * args );
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PyObject *CurNurb_pointAtIndex( Nurb * nurb, int index );
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static PyObject *CurNurb_isNurb( BPy_CurNurb * self );
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char M_CurNurb_doc[] = "CurNurb";
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/*
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CurNurb_Type callback function prototypes:
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*/
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static void CurNurb_dealloc( BPy_CurNurb * self );
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static int CurNurb_compare( BPy_CurNurb * a, BPy_CurNurb * b );
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static PyObject *CurNurb_getAttr( BPy_CurNurb * self, char *name );
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static int CurNurb_setAttr( BPy_CurNurb * self, char *name, PyObject * v );
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static PyObject *CurNurb_repr( BPy_CurNurb * self );
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void CurNurb_dealloc( BPy_CurNurb * self )
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{
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PyObject_DEL( self );
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}
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static PyObject *CurNurb_getAttr( BPy_CurNurb * self, char *name )
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{
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PyObject *attr = Py_None;
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if( strcmp( name, "mat_index" ) == 0 )
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attr = PyInt_FromLong( self->nurb->mat_nr );
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else if( strcmp( name, "points" ) == 0 )
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attr = PyInt_FromLong( self->nurb->pntsu );
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if( !attr )
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return EXPP_ReturnPyObjError( PyExc_MemoryError,
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"couldn't create PyObject" );
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/* member attribute found, return it */
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if( attr != Py_None )
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return attr;
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/* not an attribute, search the methods table */
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return Py_FindMethod( BPy_CurNurb_methods, ( PyObject * ) self, name );
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}
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/*
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setattr
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*/
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static int CurNurb_setAttr( BPy_CurNurb * self, char *name, PyObject * value )
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{
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PyObject *valtuple;
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PyObject *error = NULL;
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/* make a tuple to pass to our type methods */
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valtuple = Py_BuildValue( "(O)", value );
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if( !valtuple )
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return EXPP_ReturnIntError( PyExc_MemoryError,
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"CurNurb.setAttr: cannot create pytuple" );
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if( strcmp( name, "mat_index" ) == 0 )
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error = CurNurb_setMatIndex( self, valtuple );
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else { /* error - no match for name */
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Py_DECREF( valtuple );
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if( ( strcmp( name, "ZZZZ" ) == 0 ) || /* user tried to change a */
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( strcmp( name, "ZZZZ" ) == 0 ) ) /* constant dict type ... */
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return EXPP_ReturnIntError( PyExc_AttributeError,
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"constant dictionary -- cannot be changed" );
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else
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return EXPP_ReturnIntError( PyExc_KeyError,
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"attribute not found" );
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}
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Py_DECREF( valtuple ); /* since it is not being returned */
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if( error != Py_None )
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return -1;
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Py_DECREF( Py_None );
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return 0; /* normal exit */
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}
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/*
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compare
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in this case, we consider two CurNurbs equal, if they point to the same
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blender data.
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*/
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static int CurNurb_compare( BPy_CurNurb * a, BPy_CurNurb * b )
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{
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Nurb *pa = a->nurb;
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Nurb *pb = b->nurb;
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return ( pa == pb ) ? 0 : -1;
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}
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/*
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factory method to create a BPy_CurNurb from a Blender Nurb
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*/
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PyObject *CurNurb_CreatePyObject( Nurb * blen_nurb )
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{
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BPy_CurNurb *pyNurb;
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pyNurb = ( BPy_CurNurb * ) PyObject_NEW( BPy_CurNurb, &CurNurb_Type );
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if( !pyNurb )
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return EXPP_ReturnPyObjError( PyExc_MemoryError,
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"could not create BPy_CurNurb PyObject" );
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pyNurb->nurb = blen_nurb;
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return ( PyObject * ) pyNurb;
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}
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/*
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* CurNurb_repr
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*/
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static PyObject *CurNurb_repr( BPy_CurNurb * self )
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{ /* used by 'repr' */
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return PyString_FromFormat( "[CurNurb \"%d\"]", self->nurb->type );
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}
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static PyObject *M_CurNurb_New( PyObject * self, PyObject * args )
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{
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return ( PyObject * ) 0;
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}
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/*
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* CurNurb_append( point )
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* append a new point to a nurb curve.
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* arg is BezTriple or list of xyzw floats
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*/
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PyObject *CurNurb_append( BPy_CurNurb * self, PyObject * args )
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{
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Nurb *nurb = self->nurb;
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return CurNurb_appendPointToNurb( nurb, args );
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}
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/*
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* CurNurb_appendPointToNurb
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* this is a non-bpy utility func to add a point to a given nurb
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*/
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PyObject *CurNurb_appendPointToNurb( Nurb * nurb, PyObject * args )
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{
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int i;
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int size;
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PyObject *pyOb;
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int npoints;
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/*
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do we have a list of four floats or a BezTriple?
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*/
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PyArg_ParseTuple( args, "O", &pyOb );
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if( BezTriple_CheckPyObject( pyOb ) ) {
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BezTriple *tmp;
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npoints = nurb->pntsu;
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/* printf("\ndbg: got a BezTriple\n"); */
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tmp = nurb->bezt; /* save old points */
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nurb->bezt =
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( BezTriple * ) MEM_mallocN( sizeof( BezTriple ) *
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( npoints + 1 ),
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"CurNurb_append2" );
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if( !nurb->bezt )
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return ( EXPP_ReturnPyObjError
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( PyExc_MemoryError, "allocation failed" ) );
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/* copy old points to new */
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memmove( nurb->bezt, tmp, sizeof( BezTriple ) * npoints );
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if( tmp )
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MEM_freeN( tmp );
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nurb->pntsu++;
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/* add new point to end of list */
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memcpy( nurb->bezt + npoints,
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BezTriple_FromPyObject( pyOb ), sizeof( BezTriple ) );
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} else if( PySequence_Check( pyOb ) ) {
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size = PySequence_Size( pyOb );
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/* printf("\ndbg: got a sequence of size %d\n", size ); */
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if( size == 4 ) {
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BPoint *tmp;
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npoints = nurb->pntsu;
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tmp = nurb->bp; /* save old pts */
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nurb->bp =
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( BPoint * ) MEM_mallocN( sizeof( BPoint ) *
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( npoints + 1 ),
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"CurNurb_append1" );
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if( !nurb->bp )
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return ( EXPP_ReturnPyObjError
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( PyExc_MemoryError,
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"allocation failed" ) );
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memmove( nurb->bp, tmp, sizeof( BPoint ) * npoints );
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if( tmp )
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MEM_freeN( tmp );
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++nurb->pntsu;
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/* initialize new BPoint from old */
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memcpy( nurb->bp + npoints, nurb->bp,
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sizeof( BPoint ) );
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for( i = 0; i < 4; ++i ) {
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float tmpx =
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( float ) PyFloat_AsDouble
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( PySequence_GetItem( pyOb, i ) );
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nurb->bp[npoints].vec[i] = tmpx;
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}
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makeknots( nurb, 1, nurb->flagu >> 1 );
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} else if( size == 3 ) { /* 3 xyz coords */
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printf( "\nNot Yet Implemented!\n" );
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}
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} else {
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/* bail with error */
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return ( EXPP_ReturnPyObjError
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( PyExc_AttributeError, "expected better stuff" ) );
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}
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return ( EXPP_incr_ret( Py_None ) );
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}
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/*
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* CurNurb_setMatIndex
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*
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* set index into material list
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*/
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static PyObject *CurNurb_setMatIndex( BPy_CurNurb * self, PyObject * args )
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{
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int index;
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if( !PyArg_ParseTuple( args, "i", &( index ) ) )
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return ( EXPP_ReturnPyObjError
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( PyExc_AttributeError,
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"expected integer argument" ) );
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/* fixme: some range checking would be nice! */
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self->nurb->mat_nr = index;
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Py_INCREF( Py_None );
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return Py_None;
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}
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/*
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* CurNurb_getMatIndex
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*
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* returns index into material list
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*/
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static PyObject *CurNurb_getMatIndex( BPy_CurNurb * self )
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{
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PyObject *index = PyInt_FromLong( ( long ) self->nurb->mat_nr );
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if( index )
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return index;
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return ( EXPP_ReturnPyObjError( PyExc_RuntimeError,
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"could not get material index" ) );
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}
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/*
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* CurNurb_getIter
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*
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* create an iterator for our CurNurb.
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* this iterator returns the points for this CurNurb.
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*/
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static PyObject *CurNurb_getIter( BPy_CurNurb * self )
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{
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self->bp = self->nurb->bp;
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self->bezt = self->nurb->bezt;
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self->atEnd = 0;
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self->nextPoint = 0;
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/* set exhausted flag if both bp and bezt are zero */
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if( ( !self->bp ) && ( !self->bezt ) )
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self->atEnd = 1;
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Py_INCREF( self );
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return ( PyObject * ) self;
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}
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static PyObject *CurNurb_iterNext( BPy_CurNurb * self )
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{
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PyObject *po; /* return value */
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Nurb *pnurb = self->nurb;
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int npoints = pnurb->pntsu;
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/* are we at end already? */
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if( self->atEnd )
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return ( EXPP_ReturnPyObjError( PyExc_StopIteration,
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"iterator at end" ) );
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if( self->nextPoint < npoints ) {
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po = CurNurb_pointAtIndex( self->nurb, self->nextPoint );
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self->nextPoint++;
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return po;
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} else {
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self->atEnd = 1; /* set flag true */
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}
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return ( EXPP_ReturnPyObjError( PyExc_StopIteration,
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"iterator at end" ) );
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}
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/*
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* CurNurb_isNurb()
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* test whether spline nurb or bezier
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*/
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static PyObject *CurNurb_isNurb( BPy_CurNurb * self )
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{
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/* NOTE: a Nurb has bp and bezt pointers
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* depending on type.
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* It is possible both are NULL if no points exist.
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* in that case, we return False
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*/
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if( self->nurb->bp ) {
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Py_INCREF( Py_True );
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return Py_True;
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} else {
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Py_INCREF( Py_False );
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return ( Py_False );
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}
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}
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/*
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table of module methods
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these are the equivalent of class or static methods.
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you do not need an object instance to call one.
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*/
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static PyMethodDef M_CurNurb_methods[] = {
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/* name, method, flags, doc_string */
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{"New", ( PyCFunction ) M_CurNurb_New, METH_VARARGS | METH_KEYWORDS,
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" () - doc string"},
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/* {"Get", (PyCFunction) M_CurNurb_method, METH_NOARGS, " () - doc string"}, */
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/* {"method", (PyCFunction) M_CurNurb_method, METH_NOARGS, " () - doc string"}, */
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{NULL, NULL, 0, NULL}
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};
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/*
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* method table
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* table of instance methods
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* these methods are invoked on an instance of the type.
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*/
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static PyMethodDef BPy_CurNurb_methods[] = {
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/* name, method, flags, doc */
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/* {"method", (PyCFunction) CurNurb_method, METH_NOARGS, " () - doc string"} */
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{"setMatIndex", ( PyCFunction ) CurNurb_setMatIndex, METH_VARARGS,
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"( index ) - set index into materials list"},
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{"getMatIndex", ( PyCFunction ) CurNurb_getMatIndex, METH_NOARGS,
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"( ) - get current material index"},
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{"append", ( PyCFunction ) CurNurb_append, METH_VARARGS,
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"( point ) - add a new point. arg is BezTriple or list of x,y,z,w floats"},
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{"isNurb", ( PyCFunction ) CurNurb_isNurb, METH_NOARGS,
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"( ) - boolean function tests if this spline is type nurb or bezier"},
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{NULL, NULL, 0, NULL}
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};
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/*
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* methods for CurNurb as sequece
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*/
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static PySequenceMethods CurNurb_as_sequence = {
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( inquiry ) CurNurb_length, /* sq_length */
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( binaryfunc ) 0, /* sq_concat */
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( intargfunc ) 0, /* sq_repeat */
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( intargfunc ) CurNurb_getPoint, /* sq_item */
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( intintargfunc ) 0, /* sq_slice */
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0, /* sq_ass_item */
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0, /* sq_ass_slice */
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( objobjproc ) 0, /* sq_contains */
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0,
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0
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};
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/*
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Object Type definition
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full blown 2.3 struct
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*/
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PyTypeObject CurNurb_Type = {
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PyObject_HEAD_INIT( NULL ) /* required py macro */
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0, /* ob_size */
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/* For printing, in format "<module>.<name>" */
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"CurNurb", /* char *tp_name; */
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sizeof( CurNurb_Type ), /* int tp_basicsize, */
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0, /* tp_itemsize; For allocation */
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/* Methods to implement standard operations */
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( destructor ) CurNurb_dealloc, /* destructor tp_dealloc; */
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0, /* printfunc tp_print; */
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( getattrfunc ) CurNurb_getAttr, /* getattrfunc tp_getattr; */
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( setattrfunc ) CurNurb_setAttr, /* setattrfunc tp_setattr; */
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( cmpfunc ) CurNurb_compare, /* cmpfunc tp_compare; */
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( reprfunc ) CurNurb_repr, /* reprfunc tp_repr; */
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/* Method suites for standard classes */
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0, /* PyNumberMethods *tp_as_number; */
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&CurNurb_as_sequence, /* PySequenceMethods *tp_as_sequence; */
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0, /* PyMappingMethods *tp_as_mapping; */
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/* More standard operations (here for binary compatibility) */
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0, /* hashfunc tp_hash; */
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0, /* ternaryfunc tp_call; */
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0, /* reprfunc tp_str; */
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0, /* getattrofunc tp_getattro; */
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0, /* setattrofunc tp_setattro; */
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/* Functions to access object as input/output buffer */
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0, /* PyBufferProcs *tp_as_buffer; */
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/*** Flags to define presence of optional/expanded features ***/
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Py_TPFLAGS_DEFAULT, /* long tp_flags; */
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0, /* char *tp_doc; Documentation string */
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/*** Assigned meaning in release 2.0 ***/
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/* call function for all accessible objects */
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0, /* traverseproc tp_traverse; */
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/* delete references to contained objects */
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0, /* inquiry tp_clear; */
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/*** Assigned meaning in release 2.1 ***/
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/*** rich comparisons ***/
|
|
0, /* richcmpfunc tp_richcompare; */
|
|
|
|
/*** weak reference enabler ***/
|
|
0, /* long tp_weaklistoffset; */
|
|
|
|
/*** Added in release 2.2 ***/
|
|
/* Iterators */
|
|
( getiterfunc ) CurNurb_getIter, /* getiterfunc tp_iter; */
|
|
( iternextfunc ) CurNurb_iterNext, /* iternextfunc tp_iternext; */
|
|
|
|
/*** Attribute descriptor and subclassing stuff ***/
|
|
BPy_CurNurb_methods, /* struct PyMethodDef *tp_methods; */
|
|
0, /* struct PyMemberDef *tp_members; */
|
|
0, /* struct PyGetSetDef *tp_getset; */
|
|
0, /* struct _typeobject *tp_base; */
|
|
0, /* PyObject *tp_dict; */
|
|
0, /* descrgetfunc tp_descr_get; */
|
|
0, /* descrsetfunc tp_descr_set; */
|
|
0, /* long tp_dictoffset; */
|
|
0, /* initproc tp_init; */
|
|
0, /* allocfunc tp_alloc; */
|
|
0, /* newfunc tp_new; */
|
|
/* Low-level free-memory routine */
|
|
0, /* freefunc tp_free; */
|
|
/* For PyObject_IS_GC */
|
|
0, /* inquiry tp_is_gc; */
|
|
0, /* PyObject *tp_bases; */
|
|
/* method resolution order */
|
|
0, /* PyObject *tp_mro; */
|
|
0, /* PyObject *tp_cache; */
|
|
0, /* PyObject *tp_subclasses; */
|
|
0, /* PyObject *tp_weaklist; */
|
|
0
|
|
};
|
|
|
|
|
|
/*
|
|
* CurNurb_length
|
|
* returns the number of points in a Nurb
|
|
* this is a tp_as_sequence method, not a regular instance method.
|
|
*/
|
|
|
|
static int CurNurb_length( PyInstanceObject * inst )
|
|
{
|
|
Nurb *nurb;
|
|
int len;
|
|
|
|
if( CurNurb_CheckPyObject( ( PyObject * ) inst ) ) {
|
|
nurb = ( ( BPy_CurNurb * ) inst )->nurb;
|
|
len = nurb->pntsu;
|
|
return len;
|
|
}
|
|
|
|
return EXPP_ReturnIntError( PyExc_RuntimeError,
|
|
"arg is not a BPy_CurNurb" );
|
|
}
|
|
|
|
|
|
/*
|
|
* CurNurb_getPoint
|
|
* returns the Nth point in a Nurb
|
|
* this is one of the tp_as_sequence methods, hence the int N argument.
|
|
* it is called via the [] operator, not as a usual instance method.
|
|
*/
|
|
|
|
PyObject *CurNurb_getPoint( BPy_CurNurb * self, int index )
|
|
{
|
|
PyObject *pyo;
|
|
Nurb *myNurb;
|
|
|
|
int npoints;
|
|
|
|
/* for convenince */
|
|
myNurb = self->nurb;
|
|
npoints = myNurb->pntsu;
|
|
|
|
/* DELETED: bail if index < 0 */
|
|
/* actually, this check is not needed since python treats */
|
|
/* negative indices as starting from the right end of a sequence */
|
|
|
|
/* bail if no Nurbs in Curve */
|
|
if( npoints == 0 )
|
|
return ( EXPP_ReturnPyObjError( PyExc_IndexError,
|
|
"no points in this CurNurb" ) );
|
|
|
|
if( index >= npoints ) /* out of range! */
|
|
return ( EXPP_ReturnPyObjError( PyExc_IndexError,
|
|
"index out of range" ) );
|
|
|
|
pyo = CurNurb_pointAtIndex( myNurb, index );
|
|
|
|
return ( PyObject * ) pyo;
|
|
}
|
|
|
|
|
|
/*
|
|
* this is an internal routine. not callable directly from python
|
|
*/
|
|
|
|
PyObject *CurNurb_pointAtIndex( Nurb * nurb, int index )
|
|
{
|
|
PyObject *pyo;
|
|
|
|
if( nurb->bp ) { /* we have a nurb curve */
|
|
int i;
|
|
pyo = PyList_New( 4 );
|
|
|
|
for( i = 0; i < 4; i++ ) {
|
|
PyList_SetItem( pyo, i,
|
|
PyFloat_FromDouble( nurb->bp[index].
|
|
vec[i] ) );
|
|
|
|
}
|
|
|
|
} else if( nurb->bezt ) { /* we have a bezier */
|
|
/* if an error occurs, we just pass it on */
|
|
pyo = BezTriple_CreatePyObject( &( nurb->bezt[index] ) );
|
|
|
|
} else /* something is horribly wrong */
|
|
/* neither bp or bezt is set && pntsu != 0 */
|
|
return ( EXPP_ReturnPyObjError( PyExc_SystemError,
|
|
"inconsistant structure found" ) );
|
|
|
|
return ( pyo );
|
|
}
|
|
|
|
|
|
int CurNurb_CheckPyObject( PyObject * py_obj )
|
|
{
|
|
return ( py_obj->ob_type == &CurNurb_Type );
|
|
}
|
|
|
|
|
|
PyObject *CurNurb_Init( void )
|
|
{
|
|
PyObject *submodule;
|
|
|
|
Curve_Type.ob_type = &PyType_Type;
|
|
|
|
submodule =
|
|
Py_InitModule3( "Blender.CurNurb", M_CurNurb_methods,
|
|
M_CurNurb_doc );
|
|
return ( submodule );
|
|
}
|